Multi-vehicle collision on highway 400

- #Hwy400 NB all lanes closed north of Teston Rd in #Vaughan due to 3 vehicle collision at approx 10:30 pm Monday night.
- Crossover vehicle at high rate of speed rear ended an SUV causing it to rear end a tractor trailer.
- Driver and passenger of SUV transported to hospital in life threatening condition.
- No other injuries reported
- Due to extensive clean up required highway will remain closed until approx
8am.
-#AuroraOPP investigating.